Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1998-07-20
Phys.Lett. B444 (1998) 14-20
Physics
Nuclear Physics
Nuclear Theory
Minor changes to match version to be published in Phys. Lett B, 13 pages, LaTeX, 1 postSript figure
Scientific paper
10.1016/S0370-2693(98)01373-2
We perform a self-consistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theory results for the ground states of $^{48}$Ca, $^{90}$Zr and $^{208}$Pb. We use the parameter set NL1 for the $\sigma$, $\omega$ and $\rho$ mesons, and experimental values for the pion and nucleon. An extra parameter, related to the intensity of the contact term in the pion-exchange interaction, is crucial to reproduce the latter resonances.
Conti Cláudio de
Galeao Alfredo P.
Krmpotic Francisco
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